# Canopy Networking 101

When used wirelessly, Cerillo devices interconnect with each other in what is called a "mesh network". This means that each device can connect to each other device, with the goal of being able to communicate effectively with the Canopy. As a result, every device in a Cerillo wireless network automatically extends the range of that network.

```{figure-md} network-intact
<img src="../../_images/mesh-network-diagram.png">

Example mesh network. Notice that device B is connected to the Canopy network through device A. Device A is acting as a relay for device B to connect to the network.
```

However, relying on a highly extended or "stretched" network can result in performance degradation and unexpected behavior, so best practice is to keep Cerillo devices clustered within a single area (say, a laboratory), without the network spanning multiple walls or other barriers. The very best wireless performance will be achieved when each Cerillo device is located within 15 meters of the Canopy with minimal obstruction.

```{figure-md} network-broken
<img src="../../_images/mesh-network-broken.png">

If device A is turned off, device B will attempt to re-route to stay connected to the network. However, if the distance exceeds 15m, or if significant obstructions are in the its path to the canopy or other devices, it may fail to stay connected.
```

:::{note} If your canopy or a cerillo device is having difficulty connecting, see if there is a source of electromagnetic interference nearby the device. Examples include wireless routers or bluetooth dongles. Moving a canopy away from a source of electromagnetic interference has been seen to greatly improve connection reliability in certain scenarios
:::